What is the maximum number of orbitals that may be associated with the quantum numbers n = 3 and l = 1? What is the maximum number of orbitals that may be associated with the quantum numbers n = 2 and l = 2? What is the maximum number of electrons that...
In which group do all the elements have the same number of valence electrons? (a) P, S, Cl (b) Ag, Cd, Ar (c) Na, Ca, Ba (d) N, P, As (e) None of these What periodic table group is hydrogen in? In what group of the periodic...
What is the maximum number of electrons in an atom that can have the quantum numbers n = 3 and l = 2? What is the maximum number of electrons in an atom that can have the quantum numbers n = 2 and l = 0? What is the maximum number of electrons in an at...
The quantum mechanical model introduces the concept of electrons in terms of probabilities as the orbital. This model uses three quantum numbers to describe an orbital. For example, the s orbital has a characteristic shape described by a certain quantum number. The size and energy...
In terms of the electron configuration, a group consists of a series of elements which have the same outermost electronic configurations but they have different total numbers of electrons. In the periodic table, there are a total of 18 groups.- The elements belonging...
Covalent compounds are named by listing the first, second and subsequent elements in the compound formula, then adding the ending "-ide" to the final element. If a compound has more than one electron per element, the number of electrons is added in subscript next to the element. For instanc...
Periodic table is divided into eight vertical columns known as A) ___ and seven horizontal rows known as B) ___ . All elements with the same C) ___ number have the same number of electrons in the outermost shell. It is the D) ___ electrons that take part in chemical reactions and...
e- due to calcium nucleus should be stronger. As a result Na is more reactive than Ca. I hope you will find them helpful. 2008-01-16 21:33:28 补充： Besides Ca can use 3-d orbital to take part in the metallic bond while Na can't. Hence the number of electrons ...
The Modern Theory of Atomic Structure: Atomic number: The number of protons in the nucleus of an atom of that element. –Gives the number of electrons in a neutral element. –Gives the order of elements on the periodic table –If an atom gains or loses a proton it not only changes its...
What is the period and column of the element?In which group do all the elements have the same number of valence electrons? (a) P, S, Cl (b) Ag, Cd, Ar (c) Na, Ca, Ba (d) N, P, As (e) None of theseWhich of the first 20 elements in th...